CN101389518B - Hybrid vehicle and control method therefor - Google Patents

Hybrid vehicle and control method therefor Download PDF

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Publication number
CN101389518B
CN101389518B CN2007800063441A CN200780006344A CN101389518B CN 101389518 B CN101389518 B CN 101389518B CN 2007800063441 A CN2007800063441 A CN 2007800063441A CN 200780006344 A CN200780006344 A CN 200780006344A CN 101389518 B CN101389518 B CN 101389518B
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China
Prior art keywords
power
battery
combustion engine
discharge
regeneration
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Expired - Fee Related
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CN2007800063441A
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Chinese (zh)
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CN101389518A (en
Inventor
福村光正
河合高志
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Toyota Motor Corp
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Toyota Motor Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/13—Maintaining the SoC within a determined range
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/28—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
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    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
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    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
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    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/006—Starting of engines by means of electric motors using a plurality of electric motors
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    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0862—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N2011/0881—Components of the circuit not provided for by previous groups
    • F02N2011/0885—Capacitors, e.g. for additional power supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N2011/0881—Components of the circuit not provided for by previous groups
    • F02N2011/0896—Inverters for electric machines, e.g. starter-generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2300/00—Control related aspects of engine starting
    • F02N2300/20—Control related aspects of engine starting characterised by the control method
    • F02N2300/2002—Control related aspects of engine starting characterised by the control method using different starting modes, methods, or actuators depending on circumstances, e.g. engine temperature or component wear
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

An HV-ECU performs refresh discharge of a battery before charging the battery from the commercial power supply by using an AC/DC converter (S110). After the battery is refresh-discharged (S150), the HV-ECU outputs a control signal to the AC/DC converter to drive the AC/DC converter and charges the battery from the commercial power supply (S170).

Description

Motor vehicle driven by mixed power and control method thereof
Technical field
The present invention relates to motor vehicle driven by mixed power and control method thereof, the regeneration control of the battery that particularly carries on the motor vehicle driven by mixed power.
Background technology
Saving in recent years under the energy, the continuous background that heats up of environmental problem, motor vehicle driven by mixed power (Hybrid Vehicle) receives greatly to gaze at.Motor vehicle driven by mixed power is on the basis of driving engine in the past, adds storage battery, inverter and by the be used as power vehicle in source of the electrical motor that inverter drives.That is, when gaining impetus, will be alternating-current voltage/AC voltage from the voltage transitions of storage battery, and electrical motor rotated, further gain impetus with the alternating-current voltage/AC voltage after this conversion through inverter through the driving driving engine.
On such motor vehicle driven by mixed power, control storage battery charge/discharge, make the expression storage battery charge condition (State of Charge:SOC) quantity of state (following also abbreviate as " SOC " representes with 0～100%) within the specific limits.
On the other hand; As everyone knows; If carry out the charge/discharge of storage battery within the specific limits repeatedly, then can produce error between the SOC of the presumed value of SOC and reality, the deterioration that charging reduces and sulfation causes that so-called memory effect causes can take place.And known, these problems can be eliminated through carrying out so-called regeneration storage battery pond.That is,, can eliminate the problems referred to above through making storage battery near full charging or discharge fully.Also have, known, through battery charge or discharge SOC is significantly departed from from control domain, can increase regeneration effect.
The spy opens the 2004-328906 communique, discloses the battery charge controller of such motor vehicle driven by mixed power that carries out battery refresh.In this battery charge controller, according to the continuation time of run of vehicle-state calculation driving engine.In addition, between the needed charging in case of necessity of calculation battery refresh charging.If the continuation time of run of judging driving engine is then implemented the refresh charging of storage battery than long between said charging in case of necessity.
According to this battery charge controller, through before the continuation time of run of driving engine or simultaneously, refresh charging finishes, so can be only for carrying out refresh charging driving driving engine.As a result, it is low to suppress specific consumption of fuel.
But, open in the disclosed battery charge controller of 2004-328906 communique the spy, carry out the refresh charging of storage battery through engine driven generators, so can follow the consumption of fuel that produces by driving engine.
Also have; Especially in the motor vehicle driven by mixed power that can use the outside vehicle power supply as battery charge, compare with the motor vehicle driven by mixed power that does not have the external charging function, the control domain of SOC becomes higher; Even, also possibly can't fully obtain regeneration effect so carry out refresh charging.
Summary of the invention
So the present invention makes in order to address this problem, its purpose be to provide a kind of can be reliably and the motor vehicle driven by mixed power of efficiently storage battery being regenerated.
Also have, another object of the present invention is to provide a kind of control method of the motor vehicle driven by mixed power of can be reliably and efficiently storage battery being regenerated.
According to the present invention, motor vehicle driven by mixed power has combustion engine, the 1st electrical motor, chargeable/discharge battery, power generation assembly, power-converting device and control setup.Combustion engine and the 1st electrical motor are as the propulsion source of vehicle and carry.Battery constitutes the power supply of the 1st electrical motor.Power generation assembly utilizes the dynamic power of combustion engine, can be battery charge.Power-converting device carries out power converter with the mode of the electric power of can between the power supply of outside vehicle and battery, giving and accepting.Control setup, to utilize power-converting device from external power supply battery to be implemented the regeneration discharge of battery before charging, battery recycling discharge back is carried out electrically-charged mode from external power supply to battery, and power-converting device is controlled.
Preferably, power generation assembly comprises the 2nd electrical motor.The 2nd electrical motor, its S. A. mechanical connection can utilize the electric cranking combustion engine that comes from battery on the bent axle of combustion engine.And control setup when the residual fuel amount of combustion engine surpasses specified amount, is judged to be and implements the regeneration discharge.Here, specified amount is to follow the quantity of state of the charge condition of regeneration discharge, expression battery to be lower than through during the required necessary amount of the 2nd motor starting combustion engine, can make combustion engine continue the amount of operation.
Be more preferably, control setup is controlled the 2nd electrical motor to follow regeneration discharge, quantity of state to be lower than before the necessary amount mode of cranking internal combustion engine, be lower than at quantity of state necessary amount during make combustion engine continue the mode controlling combustion engine of operation.
Preferably, control setup judges whether external power supply is stable, when judging that external power supply is stablized, is judged to be and implements the regeneration discharge.
Preferably, power generation assembly comprises the 2nd electrical motor.The 2nd electrical motor, S. A. mechanical connection can utilize the electric cranking combustion engine that comes from battery on the bent axle of combustion engine.Control setup judges that whether external power supply is stable, when judging that external power supply is unstable, controls the 2nd electrical motor with cranking internal combustion engine.
Preferably, motor vehicle driven by mixed power also possesses input media.Input media is to be provided with in order to supply the user to indicate the enforcement of regeneration discharge.Control setup when the enforcement of discharging through input media indication regeneration, is judged to be and implements the regeneration discharge.
Also have, preferred, motor vehicle driven by mixed power also possesses input media.Whether input media is to follow regeneration discharge, combustion engine to move and be provided with in order to supply the user to indicate.Power generation assembly comprises the 2nd electrical motor.The 2nd electrical motor, S. A. mechanical connection can utilize the electric cranking combustion engine that comes from battery on the bent axle of combustion engine.And control setup is controlled the 2nd electrical motor with the mode of cranking internal combustion engine when indicating the operation of combustion engine through input media.
Preferably, control setup will be controlling power-converting device from the mode that the electric power of battery discharge is supplied with to external power supply.
Preferably, motor vehicle driven by mixed power also possesses notifying device.Notifying device notifies the user to follow regeneration discharge, battery just at charge/discharge.
Also have, preferred, motor vehicle driven by mixed power also possesses notifying device.Notifying device notifies the user to follow regeneration discharge, combustion engine to move.
In addition, according to the present invention, control method is the control method of motor vehicle driven by mixed power.Motor vehicle driven by mixed power possess combustion engine, the 1st electrical motor, can the charge/discharge battery, power generation assembly and power-converting device.Combustion engine and the 1st electrical motor are as the propulsion source of vehicle and carry.Battery constitutes the power supply of the 1st electrical motor.Power generation assembly utilizes the dynamic power of combustion engine, can be to battery charge.Power-converting device carries out power converter with the mode of the electric power of can between the power supply of outside vehicle and battery, giving and accepting.And control method comprises the 1st and the 2nd step.In the 1st step, with power-converting device from external power supply to battery charge before, implement the regeneration discharge of battery.In the 2nd step, after battery recycling discharge, through power-converting device is controlled, from external power supply to battery charge.
Preferably, power generation assembly comprises the 2nd electrical motor.The 2nd electrical motor, S. A. mechanical connection can utilize the electric cranking combustion engine that comes from battery on the bent axle of combustion engine.Control method also comprises the 3rd step.In the 3rd step,, judge whether to implement the regeneration discharge according to the residual fuel amount of combustion engine.In the 3rd step, when the residual fuel amount of combustion engine surpasses specified amount, be judged to be when implementing the regeneration discharge, in the 1st step, implement the regeneration discharge of battery.Here, specified amount is to follow the quantity of state of regeneration discharge, expression battery charging state to be lower than through during the needed necessary amount of the 2nd motor starting combustion engine, can make combustion engine continue the amount of operation.
Preferably, control method also comprises the 4th and the 5th step.In the 4th step, following before regeneration discharge, quantity of state be lower than necessary amount cranking internal combustion engine.In the 5th step, when in the 2nd step, during to battery charge,, then stopping combustion engine if quantity of state surpasses necessary amount from external power supply.
Preferably, control method also comprises the 6th step.In the 6th step,, judge whether to implement the regeneration discharge based on external power supply.In the 6th step, when enforcement regeneration discharge is stablized, is judged to be to external power supply, in the 1st step, implement the regeneration discharge of battery.
Preferably, power generation assembly comprises the 2nd electrical motor.The 2nd electrical motor, S. A. mechanical connection can utilize the electric cranking combustion engine that comes from battery on the bent axle of combustion engine.Control method also comprises the 7th and the 8th step.In the 7th step, judge whether external power supply is stable.In the 8th step, if judge external power supply instability, then cranking internal combustion engine.
In the present invention, control setup, utilize power-converting device from external power supply to battery charge before, implement the regeneration discharge of battery, thus even under the high situation of the control domain of SOC, also can be reliably with redgenerated cell.And, control setup, after battery recycling discharge, the mode of battery charge being controlled power-converting device from external power supply, thus with operation of combustion engine the situation of battery charge is compared, can be efficiently to battery charge.
Therefore, according to the present invention, can reliably and efficiently regenerate to battery.
Description of drawings
Fig. 1 is the entire block diagram of the motor vehicle driven by mixed power of embodiment of the present invention 1.
Fig. 2 is the figure of the design of the explanation regeneration control of carrying out storage battery through HV-ECU shown in Figure 1.
Fig. 3 is the diagram of circuit of the control structure of the expression regeneration control of carrying out storage battery through HV-ECU shown in Figure 1.
Fig. 4 is the figure of explanation with the method for the departure of accessory equipment calculating SOC.
Fig. 5 is the figure of the variation of the SOC in the expression regeneration control.
Fig. 6 is the detail flowchart of the processing of step S50 shown in Figure 5.
Fig. 7 representes to carry out through the HV-ECU in the embodiment 2 diagram of circuit of control structure of the regeneration control of storage battery.
Fig. 8 is the diagram of circuit that the regeneration of the variation of embodiment 2 is controlled.
The specific embodiment
Below, with reference to accompanying drawing, embodiment of the present invention is elaborated.In addition, to the symbol together of the identical or cooresponding part additional phase among the figure, it is not carried out repeat specification.
Embodiment 1
Fig. 1 is the entire block diagram of the motor vehicle driven by mixed power of embodiment 1 of the present invention.With reference to Fig. 1; This motor vehicle driven by mixed power 10 possesses storage battery B, power lead PL, grounding jumper SL, capacitor C, inverter 12,14, dynamotor MG1, MG2, driving engine 16; Fuel Tank 18, drive wheel 20, MG-ECU (Electronic Control Unit, ECU) 22, Engine ECU 24, HV-ECU26, voltage sensor 36 and current sensor 37.Simultaneously, motor vehicle driven by mixed power 10 also possesses AC/DC conv 28, voltage sensor 38, terminal 40,42, accessory equipment 30, input media 32 and notifying device 34.
Storage battery B be can charge/discharge battery, comprise the for example secondary battery of ni-mh, lithium ion etc.Storage battery B supplies with direct current (DC) through power lead PL and grounding jumper SL to inverter 12,14.Also have, storage battery B, by the output of using driving engine 16, through dynamotor MG1 generating gained electric power and when the regenerative brake of vehicle the electric power through dynamotor MG2 generating gained charge.And, storage battery B, the electric power that is provided by the industrial power 44 from outside vehicle charges.
Voltage sensor 36, the battery tension VB of detection storage battery B exports its detected battery tension VB to MG-ECU22 and HV-ECU26.Current sensor 37, the battery current IB of detection output/input storage battery B should export to MG-ECU22 and HV-ECU26 by detected battery current IB.Capacitor C makes the variation in voltage smoothing between power lead PL and the grounding jumper SL.
Inverter 12,14 is separately corresponding to dynamotor MG1, MG2 and be provided with.Inverter 12, with genemotor MG1 accept driving engine 16 power, the generating gained 3 cross streams electricity convert direct current (DC) into based on signal PWM1 from MG-ECU22, with this conversion after direct current (DC) supply with to power lead PL.Simultaneously, inverter 12 when driving engine 16 startings, based on the signal PWM1 from MG-ECU22, will convert 3 cross streams electricity from the direct current (DC) that power lead PL supplies with into, drive genemotor MG1.
Inverter 14 based on the signal PWM2 from MG-ECU22, will convert 3 cross streams electricity from the direct current (DC) that power lead PL supplies with into, drive genemotor MG2.Thus, drive genemotor MG2, to produce the torque of appointment.In addition; Inverter 14; When the vehicle regenerative brake, utilize the rotational force from drive wheel 2 acceptance, 3 cross streams electricity of generating gained to convert direct current (DC) into genemotor MG2 based on signal PWM2 from MG-ECU22, the direct current (DC) after this conversion is exported to power lead PL.
Genemotor MG1, MG2 are 3 cross streams electrical motors, for example comprise 3 cross streams synchronous motors.Genemotor MG1 utilizes the power of driving engine 16 to produce 3 cross streams electricity, and 3 cross streams electricity of its generation are exported to inverter 12.In addition, genemotor MG1 produces propulsive effort through the 3 cross streams electricity of accepting from inverter 12, to carry out the starting of driving engine 16.Genemotor MG2 is through the electric driving torque that produces drive wheel 20 of 3 cross streams of accepting from inverter 14.In addition, genemotor MG2 when the vehicle regenerative brake, is used to produce 3 cross streams electricity from the turning effort of drive wheel 20, and 3 cross streams electricity of this generation are exported to inverter 14.
Driving engine 16 shakes power take-off shaft through genemotor MG1 and starts.Then, driving engine 16 based on the control signal CTL1 from Engine ECU 24, makes the flow regulating valve that is arranged at aspirate tube, ignition device, jetting system etc. (all not having diagram) work, produces power.Fuel Tank 18, the fuel of deposit driving engine 16.Fuel Tank 18 through there not being graphic sensor residual fuel amount FUEL, should be exported to HV-ECU26 by detected residual fuel amount FUEL.
AC/DC conv 28 is arranged on storage battery B and terminal 40, between 42.AC/DC conv 28, based on control signal CTL2 from HV-ECU26, with the power conversions that puts on terminal 40,42 from industrial power 44 be storage battery B current potential, export to storage battery B.In addition, AC/DC conv 28 can also be based on the control signal CTL2 from HV-ECU26, will be the current potential of industrial power 44 from the power conversions of storage battery B, to industrial power 44 outputs.
Terminal 40,42 is the terminals that are used for industrial power 44 is connected in AC/DC conv 28.When carrying out the charging from 44 couples of storage battery B of industrial power, the industrial voltage of industrial power 44 is applied on the terminal 40,42.Voltage sensor 38, detection terminal 40, the voltage VAC between 42 should export to HV-ECU26 by detected voltage VAC.
Accessory equipment 30 is connected with grounding jumper SL with power lead PL.Accessory equipment 30 receives from the electric power of power lead PL and supplies with, and is driven based on the control signal CTL3 from HV-ECU26.Accessory equipment 30 comprises for example electric air-conditioning and DC/DC conv etc.In addition, accessory equipment 30 detects this consumes electric power PC, exports to HV-ECU26.
MG-ECU22 accepts drive controlling dynamotor MG1, the necessary control command COMMG of MG2 from HV-ECU26.In addition, MG-ECU22 receives battery tension VB and battery current IB respectively from voltage sensor 36 and current sensor 37, and never graphic current sensor receives the detected value of the motor current of dynamotor MG1, MG2.Then; MG-ECU22; Based on control command COMMG and above-mentioned each detected value from HV-ECU26, generate the control signal PWM1 be used for drives inverter 12 and the control signal PWM2 that is used for drives inverter 14, with the control signal PWM1 of this generation, PWM2 respectively to inverter 12,14 outputs.
Engine ECU 24 receives drive controlling driving engine 16 necessary control command COMEG from HV-ECU26.And Engine ECU 24 based on the control command COMEG from HV-ECU26, generates the control signal CTL1 be used to drive driving engine 16, with the control signal CTL1 of this generation to driving engine 16 outputs.
HV-ECU26 generates drive controlling dynamotor MG1, the necessary control command COMMG of MG2, and the control command COMMG of this generation is exported to MG-ECU22.For example, HV-ECU26 according to the SOC of vehicle running state, storage battery B, calculate the torque instruction of dynamotor MG1, MG2, exports as control command COMMG this torque instruction that calculates to MG-ECU22.In addition, HV-ECU26 generates drive controlling driving engine 16 necessary control command COMEG, with the control command COMEG of this generation to Engine ECU 24 outputs.For example, HV-ECU26 based on the SOC of vehicle running state, storage battery B, calculate the rotary speed instruction of driving engine 16, outputs to Engine ECU 24 with this rotary speed instruction that calculates as control command COMEG.
In addition, HV-ECU26 receives battery tension VB and battery current IB respectively from voltage sensor 36 and current sensor 37, based on the battery tension VB and the battery current IB of this reception, calculate the SOC of storage battery B.SOC, for example integrating battery current IB calculates, or the figure that concerns between the open circuit voltage (Open Circuit Voltage:OCV) of utilization expression storage battery B and the SOC, and VB calculates based on battery tension.In addition, HV-ECU26, the charge/discharge of control storage battery B is controlled at the SOC that this is calculated in the scope of appointment (being in the scope of center ± 20% with 60% for example).
In addition, HV-ECU26 when utilizing industrial power 44 to carry out the charging to storage battery B, generates the control signal CTL2 that is used to drive AC/DC conv 28, with the control signal CTL2 of this generation to 28 outputs of AC/DC conv.In addition, utilize the charging to storage battery B of industrial power 44, for example can by the user from input media 32 indication carry out or as after carry out during the regeneration control of the storage battery B that states.
In addition, HV-ECU26, when through after state method; Judge when being necessary regeneration storage battery pond B and can implementing the regeneration of storage battery B; The storage battery B discharge of regenerating after implementing the regeneration discharge, is carried out and is utilized AC/DC conv 28 to carry out electrically-charged regeneration control from 44 couples of storage battery B of industrial power.
Input media 32 is used for the enforcement that the user indicates regeneration control, or whether reserve operation driving engine 16 has a power failure in order to industrial power 44 in regeneration control like the said user's indication in back.Input media 32 comprises for example touch pad and button etc., when the person of being used operates, to the signal of HV-ECU26 output corresponding to this operation.
Notifying device 34 following regeneration control, storage battery B just at charge/discharge to user notice, or as the back said in regeneration control driving engine 16 just have a power failure in order to industrial power 44 at reserve operation.Notifying device 34 can the visual read out instrument of the person of being to use, and also can be the audio unit of notifying through sound.
Fig. 2 is the figure of the design of the explanation regeneration control of carrying out storage battery B through HV-ECU26 shown in Figure 1.With reference to Fig. 2, the longitudinal axis is represented the SOC (%) of storage battery B.Higher limit SU and lower limit SL, the range of control of regulation SOC, HV-ECU26 control SOC gets in this scope SOC.Last higher limit SH, the charging end level when expression utilizes AC/DC conv 28 from 44 pairs of storage battery B chargings of industrial power.
In this motor vehicle driven by mixed power 10, can utilize AC/DC conv 28 from 44 pairs of storage battery B chargings of industrial power, so SOC surpasses higher limit SU.That is, this motor vehicle driven by mixed power 10 is compared with the motor vehicle driven by mixed power that does not have the external charging function, and the control domain of SOC is higher.
Here; SOC departs from common control domain as far as possible, and is more effective to the reproduction ratio of storage battery, in this high motor vehicle driven by mixed power 10 of this SOC control domain; Only make storage battery B be in fully charged state in the regeneration storage battery pond during B, fully regeneration storage battery pond B.So, in this embodiment 1,, then, utilize AC/DC conv 28 from 44 pairs of storage battery B chargings of industrial power through storage battery B electric discharge reactivating storage battery B.
Here, when storage battery B is charged, not the generation power charging that drives driving engine 16, passes through dynamotor MG1, but utilize 44 pairs of storage battery B chargings of industrial power,, can charge to storage battery B efficiently so can not cause the reduction of specific consumption of fuel.
Fig. 3 is the diagram of circuit of the control structure of the expression regeneration control of carrying out storage battery B through HV-ECU26 shown in Figure 1.In addition, at regular intervals or specified requirements when at every turn setting up, from main program, call processing and execution in this diagram of circuit.
With reference to Fig. 3, HV-ECU26 at first confirms the state (step S10) of storage battery B.Specifically; HV-ECU26; According to after the method stated; Be used to from storage battery B electric power, under certain normal condition, drive accessory equipment 30, infer actual SOC, calculate itself and the departure of the SOC control that is used for SOC, that calculate based on battery tension VB and battery current IB.Also have, HV-ECU26 according to from last time implementing the elapsed time of regeneration control, infers the situation occurred of memory effect among the storage battery B.
Fig. 4 is the figure of explanation with the method for the departure of accessory equipment 30 calculating SOC.With reference to Fig. 4, transverse axis is represented the SOC of storage battery B, and the longitudinal axis is represented the consumes electric power of accessory equipment 30.Line k1, expression is used to the electric power from storage battery B, the consumes electric power of the accessory equipment 30 when under certain normal condition, driving auxiliary engine 30 and the relation of SOC, forms through prior image data, drafting.
Along with the consumes electric power rising of SOC step-down, accessory equipment 30, this is because SOC is low more, battery tension is low more, and the electric current that thereupon is supplied to accessory equipment 30 increases, so the consumes electric power in the accessory equipment 30 becomes greatly.
Come from the electric power of storage battery B through measure utilizing, the consumes electric power of the accessory equipment 30 when under certain normal condition, driving accessory equipment 30, utilize this figure to infer actual SOC.That is, establish the electric power that is used to from storage battery B, the consumes electric power of the accessory equipment 30 when under the certain standard state, driving accessory equipment 30 is P1, then inferring actual SOC is S1.Relative therewith, when the SOC that is calculated based on the battery tension VB and the battery current IB of the control that is used for SOC was S2, HV-ECU26 was made as the poor Δ S of S1 and S2 the departure of SOC.
Once more with reference to Fig. 3, HV-ECU26, based on the state of the storage battery B that confirmed, whether the regeneration of judging storage battery B necessary (step S20).Specifically; When the departure of SOC has surpassed the critical value of prior setting; The elapsed time of perhaps controlling from last time implementing to regenerate has surpassed the time of prior setting and has inferred when memory effect takes place, and HV-ECU26 judges that the regeneration of storage battery B is necessary.
Work as HV-ECU26, when the regeneration of judging storage battery B there is no need (NO of step S20), do not carry out the back a series of processing, processing is turned back to main program.On the other hand, work as HV-ECU26, when the regeneration of judgement storage battery B is necessary (YES of step S20), obtain the residual fuel amount FUEL (step S30) of detected driving engine 16 in Fuel Tank 18.Then, HV-ECU26 according to this residual fuel amount FUEL that obtains, judges whether to implement the regeneration control (step S40) of storage battery B.Specifically, HV-ECU26 when residual fuel amount FUEL is less than the critical value of prior setting, judges the regeneration control of not implementing storage battery B.Here, this critical value, in when control regeneration, SOC be lower than the minimum flow that can guarantee through dynamotor MG1 fire an engine 16 needed electric power during, can make driving engine 16 continue the residual fuel amount of operation.
Fig. 5 is the figure of the variation of the SOC in the expression regeneration control.With reference to Fig. 5, the longitudinal axis is represented the SOC of storage battery B, and transverse axis is represented the elapsed time.The regeneration of storage battery B control beginning before moment t1 finishes in moment t1 regeneration discharge.Then, to the t2, reset SOC value of calculating (the SOC value of calculating that is used for SOC control), from moment t1 since the charging of moment t2 storage battery B.
Here, value SE, expression use driven by power dynamotor MG1 from storage battery B, can fire an engine 16 the minimum rate of accumulation.That is,, then drive dynamotor MG1 fail to start driving engine 16 if SOC is lower than value SE.Therefore, SOC be lower than value SE during in the Δ T, if industrial power 44 has a power failure, fail to start driving engine 16 under the situation that driving engine 16 stops, and SOC also reduces is so can not make vehicle '.
So, in this embodiment 1, SOC be lower than value SE during in the Δ T, driving engine 16 reserve operations have a power failure in order to industrial power 44.As stated, the residual fuel amount that only can make this period driving engine 16 continue operation in the Δ T is set at critical value, when residual fuel amount FUEL is less than this critical value, does not implement the regeneration control of storage battery B.
Once more with reference to Fig. 3, if in step S40, judge and can implement regeneration control (YES of step S40), HV-ECU26 then actually implements regeneration control (step S50).Details about this regeneration control will be introduced in the back.Then, HV-ECU26 to the signal that notifying device 34 output expressions are being regenerated and controlled, notifies the user to follow regeneration control, storage battery B just at charge/discharge (step S60) through notifying device 34.
On the other hand, if judge that in step S40 can not implement regeneration controls (NO of step S40), then HV-ECU26 makes to handle to get into step S60.So, HV-ECU26 judges the signal of the control of can not implementing to regenerate to notifying device 34 output expression, notifies the user this situation through notifying device 34.
Fig. 6 is the detail flowchart of the processing of step S50 shown in Figure 5.With reference to Fig. 6, HV-ECU26, the discharge (step S110) of beginning storage battery B.Specifically, HV-ECU26,30 output control signal CTL3 drive accessory equipment 30 to auxiliary engine, and the electric power of being put aside among the storage battery B is consumed by accessory equipment 30.
When HV-ECU26 begins the discharge of storage battery B, be used to drive the control command COMMG of dynamotor MG1 to MG-ECU22 output.So, through MG-ECU22 drives inverter 12, through dynamotor MG1 fire an engine 16 (step S120).In addition, the starting of driving engine 16 is lower than with the driven by power dynamotor MG1 that comes from storage battery B, can carries out before the above-mentioned value SE of fire an engine 16 at SOC at least.
Then, when driving engine 16 startings, HV-ECU26 to the signal that notifying device 34 output expression driving engines 16 have started, notifies the user to follow regeneration control, driving engine 16 just at reserve operation (step S130) through notifying device 34.
When storage battery B discharged, HV-ECU26 kept watch on the battery current IB come from current sensor 37, judged whether subcritical value δ (step S140) of battery current IB.This critical value δ is set to fully little value, when battery current IB subcritical value δ, judges storage battery B discharge fully.Then, HV-ECU26 when judging battery current IB subcritical value δ (YES of step S140), stops the discharge (step S150) of accessory equipment 30, end storage battery B.Then, HV-ECU26 is reset to designated value (step S160) with SOC value of calculating (the SOC value of calculating that is used for SOC control).In addition, this designated value both can be 0%, also can be the deviate corresponding to critical value δ.
When the SOC value of calculating is reseted, HV-ECU26, CTL2 drive AC/DC convs 28 to AC/DC conv 28 output control signal, from 44 couples of storage battery B of industrial power charge (step S170).Then, HV-ECU26 judges whether the SOC of storage battery B has surpassed above-mentioned value SE (step S180).HV-ECU26, when judging SOC exceedance SE (YES of step S180), even guarantee industrial power 44 after this have a power failure also can fire an engine 16 SOC, institute is so that driving engine 16 stops (step S190).On the other hand, HV-ECU26, makes to handle to get into step S200 at SOC when value SE is following (NO of step S180).
Then, HV-ECU26, the last higher limit SH according to whether SOC surpasses the charging end level of expression storage battery B judges whether storage battery B reaches fully charged state (step S200).HV-ECU26 when judging that storage battery B does not also reach fully charged state (NO of step S200), makes to handle to turn back to step S170, continues the charging of storage battery B.
On the other hand, when in step S200, judging that storage battery B has reached fully charged state (YES of step S200), HV-ECU26 stops AC/DC conv 28, finishes the charging (step S210) of storage battery B.
In addition, as stated, when control regeneration driving engine 16 reserve operations, but the run duration of driving engine 16 only limit to that SOC reduces during, also have, do not need generation load yet, so compare with driving 16 pairs of electrically-charged situation of storage battery B of driving engine, fuel discharge is few.
Also have, as stated, HV-ECU26; Through driving the electric power of accessory equipment 30 by accessory equipment 30 battery consumption B; Make storage battery B discharge, but also can make storage battery B discharge through coil, discharging resistance (not diagram) consumes electric power with genemotor MG1 (or MG2).
Also have, HV-ECU26 also can make battery B discharge through driving the electric power of AC/DC conv 28 to industrial power 44 output storage battery B.Thus, can not waste electric power, make battery B discharge.In this case, if the electric time band is implemented regeneration control at dead of night, then the advantage on the cost is also very big.
Also have, as stated, can implement regeneration control according to the residual fuel amount FUEL judgement of driving engine 16, but also can be according to judging that from the signal of input media 32 can implement regeneration controls.That is, also can let the user select to implement regeneration control from input media 32.Thus, improve user's convenience.
In addition, as stated, when storage battery B discharge beginning, fire an engine 16, but also can judge that can driving engine 16 start according to the signal that comes from input media 32.That is, also can let the user whether carry out reserve operation by driving engine 16 when input media 32 is chosen in storage battery B and is discharging.Thus, also can improve user's convenience.
As stated, in this embodiment 1, can utilize AC/DC conv 28 from 44 pairs of storage battery B chargings of industrial power, so compare with the motor vehicle driven by mixed power that does not have the external charging function, the control domain of SOC is higher.Therefore; Even only carry out refresh charging, also possibly can't obtain sufficient regeneration effect, therefore in this embodiment 1; The regeneration of implementing before storage battery B with AC/DC conv 28 from 44 pairs of storage battery B chargings of industrial power is again discharged, so storage battery B regenerates reliably.And HV-ECU26 after storage battery B regeneration discharge, drives AC/DC conv 28 with from 44 pairs of storage battery B chargings of industrial power, thus with drive driving engine 16, the electrically-charged situation of storage battery B compared, storage battery B efficiently charges.Thereby, according to this embodiment 1, can be reliably and regeneration storage battery pond B efficiently.
Also have, driving engine 16 reserve operations during regeneration control are so following the regeneration discharge, when SOC reduces, even industrial power 44 has a power failure, can prevent that also vehicle from becoming and can not move.
And then, judge that according to the residual fuel amount of driving engine 16 can implement regeneration controls, driving engine 16 can not stop owing to combustion gas lacks when controlling so regenerate.Thereby, following the regeneration discharge, when SOC reduces,, can prevent reliably that also vehicle from becoming and can not move even industrial power 44 has a power failure.
Also have, notify the user to follow regeneration discharge, storage battery B, and driving engine 16 carrying out reserve operation, so the safety can guarantee to regenerate control the time just at charge/discharge through notifying device 34.
In addition, in this embodiment 1, can utilize AC/DC conv 28, so shutting engine down 16, a lot of when using electric power from storage battery B only to go with dynamotor MG2 from the 44 couples of storage battery B of industrial power charging.On the other hand, if the engine long time stops, therefore driving engine meeting deterioration in this embodiment 1, following regeneration control, driving engine 16 work, so can prevent the deterioration of driving engine 16 so.
Embodiment 2
In embodiment 1, judge that according to the residual fuel amount of driving engine 16 can implement regeneration controls.This might have a power failure with industrial power 44 when regeneration is controlled is prerequisite.On the other hand, in this embodiment 2, judge that based on the stability of industrial power 44 can implement regeneration controls.That is, be judged to be then that industrial power 44 can not have a power failure when the regeneration discharge, implement regeneration control as long as industrial power 44 is stable.
The integral body of the motor vehicle driven by mixed power 10A of this embodiment 2 constitutes, and is identical with the motor vehicle driven by mixed power 10 of embodiment 1 shown in Figure 1.
Fig. 7 is the diagram of circuit of the control structure of the expression regeneration control of carrying out storage battery B through HV-ECU26A in this embodiment 2.In addition, at regular intervals or the condition of each appointment when setting up, call and carry out the processing this diagram of circuit from main program.
With reference to Fig. 7, this diagram of circuit replaces step S30, S40, S50 in the diagram of circuit shown in Figure 3, comprises step S35, S45, S55 respectively.That is, when the regeneration of in step S20, judging storage battery B was necessary (YES of step S20), HV-ECU26A obtained the voltage VAC (step S35) through voltage sensor 38 detected industrial powers 44.
Then, HV-ECU26A according to this voltage VAC that obtains, judges whether to implement the regeneration control (step S45) of storage battery B.Specifically, HV-ECU26A judges the stability of industrial power 44 according to the current potential of voltage VAC, frequency etc.For example, HV-ECU26A when voltage VAC reduces or finds variation of frequency, judges industrial power 44 instabilities.Then, HV-ECU26A when judging industrial power 44 instabilities, will be judged to be the regeneration control of not implementing storage battery B.
If in step S45, judge and can implement regeneration control (YES of step S45), HV-ECU26A then actually implements regeneration control (step S55).On the other hand, if judge that in step S45 can not implement regeneration controls (NO of step S45), then HV-ECU26A makes to handle to get into step S60.
In addition, the regeneration control and treatment among the step S55 comprises the step of removing in the diagram of circuit shown in Figure 6 outside step S120, S130, S180, the S190.That is, comprise and remove with driving engine 16 starting in the diagram of circuit shown in Figure 6 and stop a series of processing outside the relevant processing.
As stated, in this embodiment 2, can implement regeneration control, so the possibility that industrial power 44 has a power failure in the enforcement of regeneration control is little according to the judgement of stability of industrial power 44.Thereby, can be reduced in when following regeneration discharge, SOC reduction, industrial power 44 has a power failure, the irremovable risk of vehicle.
The variation of embodiment 2
In embodiment 2, can implement regeneration control according to the judgement of stability of industrial power 44, but in this variation, whether driving engine 16 carries out reserve operation when controlling according to the judgement of stability regeneration of industrial power 44.
In the variation of this embodiment 2,,, all implement regeneration control then regardless of the stability of industrial power 44 if judge that the regeneration of storage battery B is necessary.
Fig. 8 is the diagram of circuit of the regeneration control in the variation of this embodiment 2.With reference to Fig. 8, this diagram of circuit except diagram of circuit shown in Figure 6, also comprises step S115.That is, when the discharge of storage battery B began in step S110, HV-ECU26A was according to the stability (step S115) of the voltage VAC judgement industrial power 44 that comes from voltage sensor 38.Likewise carry out the judgement of the stability of industrial power 44 with step S45 shown in Figure 7.
Then, HV-ECU26A if judge industrial power 44 instabilities (NO of step S115), then makes to handle to get into step S120 driving engine 16 startings (step S120).That is, when industrial power 44 instabilities, driving engine 16 reserve operations are in order to the power failure of industrial power 44.
On the other hand, if in step S115, judge industrial power 44 stable (YES of step S115), then HV-ECU26A makes to handle to get into step S140.That is, when industrial power 44 is stablized, be judged to be industrial power 44 and can not have a power failure, just do not implement the reserve operation of driving engine 16.
In addition, the processing that step S150 is later, identical with the processing of diagram of circuit shown in Figure 6.
As stated; In the variation of this embodiment 2; Whether the determination of stability driving engine 16 when regenerating control according to industrial power 44 carries out reserve operation, so driving engine 16 does not carry out reserve operation when the possibility of industrial power 44 power failures is hanged down.Therefore, can avoid that driving engine 16 carries out reserve operation under unnecessary situation.
In addition; Above-mentioned embodiment 2 with and variation in; According to the stability of industrial power 44, judge respectively and can implement regeneration control and can implement reserve operation, but also can judge that can above-mentioned control and operation implement according to the date and time information of prior setting.For example, summer, high noon etc., the possibility of power failure increased owing to be peak of power consumption, so can not implement regeneration control.Also have, because noise problem is not implemented the reserve operation of driving engine 16 night.
In addition; In above-mentioned each embodiment; The formation of motor vehicle driven by mixed power 10,10A; Both can be the formation of the series connection/parallel connection type on axletree and the dynamotor MG1 to be cut apart, to be sent to the power of driving engine 16 through the power division mechanism, also can be only to use driving engine 16 for driving dynamotor MG1, utilizes the constituting of tandem type that by the electric power of dynamotor MG1 generating gained, only produces the propulsive effort of axletree through dynamotor MG2.
Also have, as stated,, but also can replace industrial power 44 from 44 pairs of storage battery B chargings of industrial power, from other power supplys for example solar cell storage battery B is charged.
Also have, as stated, AC/DC conv 28 is set in the car, but also can AC/DC conv 28 be arranged on outside the car.
Also have; As stated; Charge from 44 couples of storage battery B of industrial power with AC/DC conv 28; But also can apply the electric power that comes from industrial power 44, carry out switch control, storage battery B is charged with the mode that inverter 10,20 is worked respectively as each phase arm of single-phase PWM conv to the neutral of dynamotor MG1, MG2 3 phase coils separately.According to this method, need not possess AC/DC conv 28.
In addition, as stated, driving engine 16 is corresponding to " combustion engine " among the present invention, and dynamotor MG2 is corresponding to " the 1st electrical motor " among the present invention.In addition, storage battery B, corresponding to " battery " among the present invention, dynamotor MG1 is corresponding to " power generation assembly " among the present invention and " the 2nd electrical motor ".And then, AC/DC conv 28, corresponding to " power-converting device " among the present invention, HV-ECU26,26A are corresponding to " control setup " among the present invention.
Should be realized that this time disclosed embodiment all is illustrative and nonrestrictive in all respects.Scope of the present invention is not by the explanation of above-mentioned embodiment but represented by claim, and the meaning that is equal to claim and all changes in the scope are all included.

Claims (8)

1. motor vehicle driven by mixed power, wherein,
Possess: as the propulsion source of vehicle and the combustion engine and the 1st electrical motor that carry;
Constitute said the 1st motor power can charge/discharge battery;
Be used to from said combustion engine dynamic power, can be to the power generation assembly of said battery charge;
Carry out the power-converting device of power converter with the mode of giving and accepting that can between the power supply of outside vehicle and said battery, carry out electric power; With
Control setup; It is to utilize before said power-converting device charges to said battery from said external power supply; Implement the regeneration discharge of said battery, after said battery recycling discharge, said battery is carried out electrically-charged mode from said external power supply; Said power-converting device is controlled
Said power generation assembly comprises that S. A. is mechanically connected to the 2nd electrical motor of the bent axle of said combustion engine,
Said the 2nd electrical motor can be used to from the said combustion engine of the electric cranking of said battery,
Said control setup when the residual fuel amount of said combustion engine surpasses specified amount, is judged to be and implements said regeneration discharge,
Said specified amount is during the quantity of state of the charge condition of following said regeneration discharge, the said battery of expression is lower than through the required necessary amount of the said combustion engine of said the 2nd motor starting, can make said combustion engine continue the amount of operation.
2. motor vehicle driven by mixed power according to claim 1, wherein,
Said control setup; Said the 2nd electrical motor being controlled in the mode of following said regeneration discharge, said quantity of state to start said combustion engine before being lower than said necessary amount, be lower than at said quantity of state said necessary amount during make said combustion engine continue operation mode said combustion engine is controlled.
3. motor vehicle driven by mixed power according to claim 1, wherein,
Also possess and be used to supply the user to indicate the input media of the enforcement of said regeneration discharge;
Said control setup when indicating the enforcement of said regeneration discharge through said input media, is judged to be and implements said regeneration discharge.
4. motor vehicle driven by mixed power according to claim 1, wherein,
Said control setup will be controlling said power-converting device from the mode that the electric power of said battery discharge is supplied with to said external power supply.
5. motor vehicle driven by mixed power according to claim 1, wherein,
Also have and notify the user to follow said regeneration discharge, said battery just at the notifying device of charge/discharge.
6. motor vehicle driven by mixed power according to claim 1, wherein,
Also has the notifying device of notifying the user to follow said regeneration discharge, said combustion engine moving.
7. the control method of a motor vehicle driven by mixed power, wherein,
Said motor vehicle driven by mixed power possesses: as the propulsion source of vehicle and the combustion engine and the 1st electrical motor that carry;
Constitute said the 1st motor power can charge/discharge battery;
Use dynamic power from said combustion engine, can be to the power generation assembly of said battery charge; With
Power-converting device is can carrying out power converter from the mode that said battery obtains electric power to the power supply of said battery supply capability or outside vehicle by the power supply of outside vehicle;
Said power generation assembly comprises that S. A. is mechanically connected to the 2nd electrical motor of the bent axle of said combustion engine,
Said the 2nd electrical motor is used the electric power from said battery, can start said combustion engine,
Said control method comprises: the 1st step, before from said external power supply said battery being charged, implement the regeneration discharge of said battery with said power-converting device;
The 2nd step after said battery recycling discharge, through said power-converting device is controlled, is charged to said battery from said external power supply; And
The 3rd step based on the residual fuel amount of said combustion engine, judges whether to implement said regeneration discharge;
In said the 3rd step, when the residual fuel amount of said combustion engine surpasses specified amount, judge when implementing said regeneration discharge, in said the 1st step, implement the regeneration discharge of said battery,
Said specified amount is, during the quantity of state of the charge condition of following said regeneration discharge, the said battery of expression is lower than through the required necessary amount of the said combustion engine of said the 2nd motor starting, and the amount that said combustion engine can continue to move.
8. the control method of motor vehicle driven by mixed power according to claim 7, wherein,
Also comprise the 4th step, following said regeneration discharge, said quantity of state is lower than before the said necessary amount, starts said combustion engine; And
The 5th step when said external power supply charges to said battery, if said quantity of state surpasses said necessary amount, then stops said combustion engine in said the 2nd step.
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JP4232785B2 (en) 2009-03-04
KR20080095919A (en) 2008-10-29
KR100988519B1 (en) 2010-10-20
WO2007097471A1 (en) 2007-08-30
EP1987994A1 (en) 2008-11-05
JP2007223462A (en) 2007-09-06
EP1987994A4 (en) 2017-11-29
US7884574B2 (en) 2011-02-08

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